Design Con 2015

Deloca

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Designer/Educator

Electronics hobbyist, engineer, physicist. I have lived and worked in quite a few places around the world. Overall, I believe in a united, peaceful and caring humanity since we have one home that connects all of us. Planet Earth.


Deloca

's contributions
  • 11.03.2014
  • Flyback switcher works down to 1.1V, flashes HBLEDs
  • LoL! That's easier said than done. I live in RSA that's considered more advanced than other African countries. Even here (new) specialist components can only be imported. The Customs setup here seems over-zealous to the extent that importing even by "mail box" is subject to heavy import duties. I had a nasty surprise recently when I bought from eBay a component from HK for US$ 9 and I ended up paying US$27. BTW it took 42 days to get here by HK Mail. Some of these things HAVE to be experienced to be believed.
  • 11.17.2014
  • Monolithic PWM generator runs fast, minimizes silicon
  • Permit me to moan a bit, thanks. This great article shows that design ideas can hit the big time, with commercial ramifications. I am just a tad concerned that Europractice Multi-Project Wafer service caters only for European universities and institutions, and others like MOSIS, CMP and WaferCatalyst may have country restrictions as well. DIs up to the present haven't really cared about the country of origin - with the exception of the recent LPC1000 inductive sensing contest (sigh!). I hope DIs will always remain open.
  • 11.13.2014
  • IoT entering peak of inflated expectations
  • Actually, after posting my earlier comment I googled "The Uncanny Valley" and I notice that the Hype Cycle and the Uncanny Valley plots look remarkably similar in shape http://en.wikipedia.org/wiki/Uncanny_valley . It must all have to do with how humans think and behave.
  • 11.13.2014
  • IoT entering peak of inflated expectations
  • A very nice read, I learnt a lot. I couldn't help noticing that on the Hype Cycle the Plateau of Productivity never came close to the Peak of "Inflated" Expectations ever again. I wonder who is responsible for the inflation of expectations: is it media, is it the companies themselves, the public? This study kind of reminds me of the Uncanny Valley in robotics.
  • 11.02.2014
  • Sine Tips
  • I couldn't stop laughing. Good old John Dunn! I guess if it works for you, why change it?
  • 11.03.2014
  • Flyback switcher works down to 1.1V, flashes HBLEDs
  • Yes, I agree with you that that there are several switchers out there, but DI's are also meant to be novel or purely educational. Additionally, as someone put it neatly once on these pages, "not all places of the globe have an electronics shop around the corner". I personally derive much pleasure going through DIs based on discrete components, by authors such as Baddi, Stofka, and many many others.
  • 10.14.2014
  • Lightning strike becomes EMP weapon
  • The title is a bit misleading. The term "weapon" implies a deliberately directed destructive device through whose agencies opponents may be neutralized or eliminated.
  • 08.11.2014
  • Hybrid vacuum tube/solid-state audio power amplifier
  • There is a school of thought that says amplifiers with vacuum tube front-ends sound markedly different, even mellow - the a benefit of the enhanced thermionic emission. The author implies it also "with very crisp, tightly controlled bass and a natural midrange...". I imagine that kind of sound appeals to many but is hard to replicate solely with transistors.